There are several things you can and should do to harden your server, many of them can be found here.
dotslashme
Not my current distro but I love ChimeraLinux, they manage to put musl and BSD userland into a working wonderful distro. I wish more distros adopted musl.
At first I thought it may have been because of this CVE, but if it has been like that for a month, then it's something else.
Afaik it refers to the bacteria being treatment resistant. Usually penicillin resistant bugs are classified as super.
Switched over to wayland about 4-5 years ago, have run into a couple of problems dealing with theming, fractional scaling and of course nvidia, but on the whole my experience has been without major issues.
I wouldn't recommend specific ones, but I would recomnend you try out distros with unique features. Such as an immutable one, one that is built from source, one with packages, one with snap, one with flatpack, etc.
This will help you understand and evaluate what you like.
Did you check their support guides https://support.yubico.com/hc/en-us/articles/360016649099-Ubuntu-Linux-Login-Guide-U! ?
Redoubled my efforts to selfhost more services, abandoned reddit and generally started using the www less.
Haven't used Google search for years.
Ubuntu. I think of it as the Yahoo of linux distros. It used to be good, but then they made terrible decisions that ultimately made them irrelevant.
This is how I see God, pretty sure it applies to seeding as well.